17+1= 5+8= 5+1= 5-2=
7-1= 3+9= 5+5= 17-2=
6+2= 19-3= 6-4= 19-2=
7+2= 13-1= 10-9= 8+2=
19-16= 7-2= 15-13= 15-2=
9+2= 10-1= 2-2= 10+2=
14-10= 11+2= 7+8= 16+2=
2+7= 16-16=
9-3-4= 4-4+7=
2+2+3= 10-1-2=
8+2-5= 8-6-1=
2+1+5= 7-4+4=
2+7-6= 3-3+10=
8-( )-3=3 9-( )-2=4
7-2-( )=3 6-3-( )=2
5-( )-1=2 8-( )-2=5
7-1-( )=3 7-3-( )=3
7-( )-2=3 7-( )-4=1